Home > Encyclopedia

Fly ash in Concrete Batching Plant

Fly ash in CamelWay concrete production line mainly have three basic function, namely the morphological effect, active effect and micro aggregate effect. Scientific and reasonable use can improve the performance of concrete.

Morphological Effect

The morphology of fly ash is mainly refers to fly ash particle thickness, surface roughness characteristic in the concrete. Beads of fly ash particles can have the effect of ball bearing, reduce the friction in the mixing of concrete and improve liquidity. The density of fly ash is less than cement, thus it can increase the volume of the slurry after the equivalent replacement, improve lubrication degree of aggregate, enhance the liquidity of concrete mixture. Inferior fly ash contained with more irregular porous particles and unburned carbon, resulting in increasing water demand and water retention, a negative impact  in concrete batching plant.

Active Role

Fly ash belongs to the active mineral admixture. Fly ash contains the glassy state of silica and alumina which is the active silicon oxide and activated alumina, can have the hydration reaction with cement hydration of calcium hydroxide and water, and generated with hydraulic characteristics hydrated calcium silicate, and hydrated calcium aluminate etc., fill in the capillary porosity. The hydration products have strength too, especially hydrated calcium silicate, the hydration reaction at 28 d weaker, especially within the 7 d, and after 28 d gradually apparent. The fineness of fly ash is larger, (the smaller the particle is, the higher the activity,) hydration reaction ability is higher; the higher the temperature, hydration reaction ability is more stronger, faster growth in strength. When the temperature is lower than 5 , the hydration reaction ended, strength develops slow. Activity function can improve the strength of concrete in the concrete batching plant.

Micro Aggregate Function

Beads of fly ash with high strength, filling the gap between the cement particles, both reduce capillary porosity, and the micro skeleton. With the hydration time, bonding force of hydration products of fly ash and fly ash hydration kernel continues to improve, to improve the micro aggregate effect of fly ash. Reasonable adding fly ash in concrete batching plant, help to improve the output quality of concrete.

>>Previous: Operation method of concrete mixing station

>>Next: Ready Mixed Concrete

Get Support & Quotation

Please fill in the form below(* are required). We will get in touch with you ASAP!

Concrete Plant Concrete Mixer Crusher Other


  • Production of lightweight aggregates,lightweight aggregate production lineProduction of lightweight aggregates

    Lightweight aggregate is used to produce lightweight concrete products such as concrete blocks, structural concrete, and pavement. It can be classified into 3 types--Structural lightweight aggregate, Masonry-lightweight aggregate and Insulating aggregate....

  • Building Aggregates Manufacturing SolutionBuilding Aggregates Manufacturing Solution

    Camelway Machinery specilizes in providing professional building aggregates solution and can offer various crusher and sand maker to meet your practical demand for differen kinds of aggregate....

  • Roller Compacted Concrete Plant, RCC Mixing Plant, RCC Batching PlantRoller Compacted Concrete Plant

    Roller compacted concrete (RCC) is an extremely dry concrete which is very difficult to compact by the normal methods used for workable concrete. RCC is used for the construction of dams and pavements....

  • Concrete Solution for AAC Block PlantConcrete Solution for AAC Block Plant

    Aerated concrete block is an important kind of construction material and it is mainly composed of cement, gravel, fly ash, lime and foaming agent. It possesses the advantages of light weight, fire prevention, thermal insulation,noise insulation...

  •  High Performance Concrete Production LineHigh Performance Concrete Production Line

    High performance concrete is made through conventional technology and its strength grade is from C50~C80. It is composed of cement, sand, stone, superplasticizer and other additives, fly ash, superfine slag, silica fume and other mineral admixtures....

Contact Us

Tel: 008637165861518

Fax: 008637165861528


Mobile: 008618838109566

WhatsApp: 008618838109566

Skype: Camelway1983